"Programmable generation of counterrotating bicircular light pulses in the multi-terahertz frequency range"
Kotaro Ogawa, Natsuki Kanda, Yuta Murotani, and Ryusuke Matsunaga arXiv:2312.04768 [physics.optics]
"Anomalous Hall transport by optically injected isospin degree of freedom in Dirac semimetal thin film" Yuta Murotani, Natsuki Kanda, Tomohiro Fujimoto, Takuya Matsuda, Manik Goyal, Jun Yoshinobu, Yohei Kobayashi, Takashi Oka, Susanne Stemmer, Ryusuke Matsunaga Nano Letters 24, 222 (2024) (arXiv:2310.01093)
"Time-domain characterization of electric field vector in multi-terahertz pulses using polarization-modulated electro-optic sampling"
Natsuki Kanda, Mayuri Nakagawa, Yuta Murotani, Ryusuke Matsunaga Optics Express 32, 1576 (2024) (arXiv:2309.11675)
"Observation of terahertz spin Hall conductivity spectrum in GaAs with optical spin injection"
Tomohiro Fujimoto, Takayuki Kurihara, Yuta Murotani, Tomohiro Tamaya, Natsuki Kanda, Changsu Kim, Jun Yoshinobu, Hidefumi Akiyama, Takeo Kato, Ryusuke Matsunaga Physical Review Letters 132, 016301 (2024)Editors' Suggestion (arXiv:2305.09155) 物性研ニュース
"Disentangling the competing mechanisms of light-induced anomalous Hall conductivity in three-dimensional Dirac semimetal" Yuta Murotani, Natsuki Kanda, Tomohiro Fujimoto, Takuya Matsuda, Manik Goyal, Jun Yoshinobu, Yohei Kobayashi, Takashi Oka, Susanne Stemmer, and Ryusuke Matsunaga Physical Review Letters 131, 096901 (2023) (arXiv:2211.02229) 物性研ニュース
"Gapless detection of broadband terahertz pulses using a metal surface in air based on field-induced second-harmonic generation"
Shunsuke Tanaka, Yuta Murotani, Shunsuke A. Sato, Tomohiro Fujimoto, Takuya Matsuda, Natsuki Kanda, Ryusuke Matsunaga, and Jun Yoshinobu Applied Physics Letters 122, 251101 (2023)Featured article 物性研ニュース
"Stimulated Rayleigh scattering enhanced by a longitudinal plasma mode in a periodically driven Dirac semimetal Cd3As2" Yuta Murotani*, Natsuki Kanda*, Tatsuhiko N. Ikeda, Takuya Matsuda, Manik Goyal, Jun Yoshinobu, Yohei Kobayashi, Susanne Stemmer, and Ryusuke Matsunaga (*equal contribution) Physical Review Letters 129, 207402 (2022) (arXiv:2112.13113) プレスリリース
"Tracking ultrafast change of multiterahertz broadband response functions in a photoexcited Dirac semimetal Cd3As2 thin film"
Natsuki Kanda, Yuta Murotani, Takuya Matsuda, Manik Goyal, Salva Salmani-Rezaie, Jun Yoshinobu, Susanne Stemmer, and Ryusuke Matsunaga Nano Letters 22, 2358-2364 (2022) (arXiv:2110.09689)
"Light-driven electron-hole Bardeen-Cooper-Schrieffer-like state in bulk GaAs" Yuta Murotani, Changsu Kim, Hidefumi Akiyama, Loren N. Pfeiffer, Ken W. West, and Ryo Shimano Physical Review Letters 123, 197401 (2019)Editors' Suggestion
光照射下で半導体中に電子正孔BCS状態が実現することを実証しました。プレスリリース
"Infrared activation of the Higgs mode by supercurrent injection in superconducting NbN"
Sachiko Nakamura, Yudai Iida, Yuta Murotani, Ryusuke Matsunaga, Hirotaka Terai, and Ryo Shimano Physical Review Letters 122, 257001 (2019) (arXiv:1809.10335)
超伝導体に電流を流すと集団励起による光吸収が現れます。理論計算を手伝いました。
"Nonlinear optical response of collective modes in multiband superconductors assisted by nonmagnetic impurities" Yuta Murotani and Ryo Shimano Physical Review B 99, 224510 (2019) (arXiv:1902.01104)
超伝導体の光応答において、不純物散乱が重要な役割を果たすことを理論的に考察しました。
"Terahertz field-induced ionization and perturbed free induction decay of excitons in bulk GaAs" Yuta Murotani, Masayuki Takayama, Fumiya Sekiguchi, Changsu Kim, Hidefumi Akiyama, and Ryo Shimano Journal of Physics D: Applied Physics 51, 114001 (2018)
テラヘルツ電場による励起子のイオン化を実験・理論両面で調べました。
"Theory of light-induced resonances with collective Higgs and Leggett modes in multiband superconductors" Yuta Murotani, Naoto Tsuji, and Hideo Aoki Physical Review B 95, 104503 (2017) (arXiv:1511.05762)
学部四年次の「理論演習」から始まった研究の内容をまとめました。
